Multi-color CMOS pixel sensor with shared row wiring and dual output lines

1. An array of CMOS pixel sensors, each pixel sensor associated with a row and a column of the array and having a plurality of photosensors per pixel location, each photosensor coupled to a single sense node through a select transistor having a select input, each pixel sensor including a reset transistor coupled to the sense node and having a reset input, an amplifier transistor coupled to the sense node and a row-select transistor coupled to the amplifier, wherein: the select inputs for pixel sensors in a pair of adjacent rows are coupled to select signal lines associated with only that pair of rows; the reset inputs for pixel sensors in each row is coupled to reset signal lines associated with that row; the amplifier transistors in individual columns of each row are coupled to a column output line through a row-select transistor having a row-select input; and the row-select inputs for pixel sensors in each row of the array are coupled to a row-select line associated with the row.

2. The array of claim 1 wherein the select signal lines, the reset signal lines and the row-select lines run in a row direction of the array and the column output line runs in a column direction of the array.

3. The array of claim 2 wherein the amplifier in each pixel sensor is a source-follower transistor having its drain coupled to a source-follower drain potential node, the source-follower drain potential node for each pixel sensor in a row in the array coupled to a source-follower drain potential line and running in the column direction of the array.

4. The array of claim 2 wherein the amplifier in each pixel sensor is a source-follower transistor having its drain coupled to a source-follower drain potential node, the source-follower drain potential node for each pixel sensor in a row in the array coupled to a source-follower drain potential line associated with that row and running in the row direction of the array.